2014春八年級下冊unit7課文重難點講解(共15頁)

1、精選優(yōu)質文檔-傾情為你奉上Unit 7 Whats the highest mountain in the world?課文重難點講解Section A1. about 9,600 ,000 square kilometers in size. 大小約9,6000,0000平方公里?！窘馕?】square adj. “平方米” , 用于數字后表面積。an area of 95 square meters 95平方米的面積 n , 正方形；廣場Many old people like dancing on the square after supper.【解析2】in size = have /

2、has an area of. （面積）大小2. 1，025 meters deep 深1，025米【解析1】1,025 meters “深1,025米”【注】在英語中，表示事物的長、寬、高、深等時，主要有兩種表達方式：結構1：“基數詞 + 單位名詞+ 形容詞（long,wide,tall, deep等）”。如果數詞超過1，單位名詞要用復數形式。【注】單位詞有： meter; foot; inch; kilogram 等 Yao Ming is over 2 meters tall. The river is 50 meters wide. “基數詞+ 單位名詞+ in + 名詞（length

3、; width; height; depth等） two meters long = two meters in length 2米長 three feet high = two feet in height. 3英尺高結構2： 長、寬、高、深還可用復合形容詞表示 “數字+ 量詞（單位）+形容詞（long/ wide/ tall/ deep等）” . 各個詞間用連字符連接，常作前置定語修飾名詞。Jeremy Shu-How Lin is a 1.91-meter-tall- basketball player.【解析2】deep adj. 深的 take a deep breath.深深呼吸【

4、拓展】 adj n deep depth long length high height wide width 3. Qomolangma is _ than any other mountain in the world.珠穆朗瑪峰比世界上任何山都_.【解析】 “any other +可數名詞的單數” 任何其他的【用法1】any other “其他任何一個” ,后接可數名詞單數，指在同一范圍內除了某人或某物以外的其他任何人或物通常用于比較級，多用于同一范圍內相比較。 Shanghai is bigger than any other city in China.【用法2】 “any othe

5、r +可數名詞單數” 可與 “the other + 可數名詞復”互換，也可用最高級形式表達。Lucy is more careful than any other student in her class. (any other + 可數名詞單數）=Lucy is more careful than the other students in her class. (the other + 名詞復數）= Lucy is the most careful student in her class.4. Its a lot bigger than the population of the US

6、. （中國）人口比美國多對多。【解析1】a lot .得多；很多；非?！颈嫖觥?1) a lot 很多，做副詞短語，修飾動詞，放在動詞之后。相當于very much. It usually rains a lot at this time of year. (2)a lot of = lots of + 復數名詞 =many +復數名詞=much+ 不可數名詞【解析2】 population 人口；人口數量population常與the連用,做主語且強度整體人口時，謂語動詞一般用單數，The population is increasing faster and faster. 當主語時“人口

7、的百分之幾、幾分之幾”時，謂語動詞常用復數形式。 Three quarters of the population are workers. 表示人口的"多"或"少"時, 用"large"或"small"The population of China is very large. 中國人口眾多( ) The population of the town is much _ than that of your town. A. less B. fewer C. smaller 詢問某國、某地有多少人口時, 用&quo

8、t;How large.?"How large is the population of your hometown? 你們家鄉(xiāng)有多少人口? 提問有多少人口，常用“ what is the population of ?” What is the population of Canada? 加拿大的人口有多少? 表示 “某地有多少人口” 時，常用1）The population of 某地be數詞（該句型中population前用冠詞the。）2）某地has a population of 數詞（people）（該句型中population前用冠詞a。）例如：The populati

9、on of China is about 13 billionChina has a population of about 1.3 billion中國大約有13億人口。5. It has a much longer history than the US. （中國）比美國歷史長得多?！窘馕觥縨uch 得多 （修飾比較級）類似的詞還有：even “更.” , a lot “很多；.得多” a little “比.一點”My classroom is a little bigger than yours.6. The US is not even years old. 美國的歷史甚至不到_ 年。

10、【解析】even 甚至 (用在比較級前，表示程度）【2012山東濟寧】In the talent show, I performed well and Ann did even _B_. A. well B .better C. more D. worse7. Feel free to ask me anything on todays Great Wall tour.針對今天的長城之旅，大家可以自由提問我任何問題?！窘馕觥?tour n 旅行 tourist n 旅游者 touristy adj. 游客很多的.tour guide 導游My brother wants to be a _(t

11、ourist) v 旅行 traveller n 旅游者 travelling adj. 旅行的travel to 到旅行 travel all over the world. 周游世界【辨析】tour/ trip/ travel/ journey 詞語用法travel一般指長途旅行，到國外或遠方旅行。travel 還可作動詞tour“旅行，周游，觀光” .一般團隊都是tourtrip一般指短距離旅行，直達目的地的旅行journey有時并不指真正意義的“旅行”， 而只是表示走過一段距離?！居洝?觀光游玩用tour ，長途陸路用journey， 短途短期用trip，tr

12、avel 用法最普遍，特別用于指“游記”8. How long is the wall? 長城有多長？【解析】how long 多長；多久 對長度提問 How long is the table? About 1.2 meters. 對時間提問，常用for或since引導的時間狀語來回答。 How long does it take you to do your homework in the evening? For two hours.9.The main reason was to protect their part of the country. 主要的原因是保衛(wèi)自己的國家?！窘馕觥?/p>

13、 protect v “保護” We should protect tect sb./ sth from 保護某人/ 某物使其不受Protect your eyes from the sun. 不要讓陽光傷害你的眼睛。10. As you can see , its quite tall and wide. 正如你所看到的， 長城非常高，也非常寬廣。【解析】as conj.像一樣，正如 （用來引導狀語從句） I was surprised as he opened the door. prep. 作為11. As far as I know, there are no

14、man-made objects as big as this. 據我所知，沒有任何一個人造物有長城這么長。【解析】as far as I know據我所知 as far as “就.來說，至于.” , 引導狀語從句，強調范圍或程度，常與動詞know, see,等連用，可放在句首或句中?！居洝縜s far as I can remember 據我所記得的as far as I can see 依我所見12. One of the words most dangerous sports is mountain climbing,登山是世界上最危險的運動之一?！窘馕觥縪ne of + the ad

15、j. 最高級 + 可數名詞復數13 Of all the mountains , Qomolangma rises the highest and is the most famous.在所有的山峰中， 珠穆朗瑪峰最高，最有名?！窘馕觥縡amous = well- know adj. 著名的， 有名的(1) be famous for 因而著名 （某人因某種知識、技能或特征而出名） China is famous for the Great Wall and Pandas(2) be famous as 作為.而出名 （某人以某種身份而出名） Lu Xun was famous as a wr

16、iter.14.Even more serious difficulties include freezing weather conditions and heavy storms. （比這） 更嚴重的困難包括冰凍的天氣條件和強烈的暴風雨?！窘馕?】include 包括；包含 include v 包括 including prep 包括（放在被包括的對象之前）【解析2】freezing adj. 凍冰的；結冰的freezing adj. 凍冰的，結冰的freeze v Today it is freezing cold.frozen adj. 凍結的，被冰覆蓋的 I dont like fr

17、ozen food.【解析3】condition 條件；狀況 out of condition 不健康，身體不好； in good condition 情況良好；完好15.It is also very hard to take in air as you get near the top. 并且越接近頂部呼吸越困難?！窘馕觥縯ake in 吸入； 吞入（體內）take after（外貌）相像 take away 拿開 take down 寫下，記下take in吸收，吸納 take off 起飛；脫下take it easy 別緊張take to 喜歡，開始從事 take pictures照

18、相 take care of 照顧，照料16. The first Chinese team did so in 1960 , while the first woman to succeed was Junko Tabei from Japan in 1975. 1960年第一支中國登山隊登上了頂峰，1975年日本的田部井淳子成為第一個成功登上頂峰的女子。【解析1】while conj. 然而 (連接并列句） He is a worker while I am a doctor. conj . 當.的時候，（引導時間狀語從句） While I was doing my homework ,m

19、y mother came in .【解析2】succeed v 成功，達到 success n 成功successful adj. 成功的successfully adv成功地 succeed in doing sth 成功地做某事17.Why do so many climbers risk their lives? 為什么這么多登山者愿意冒生命危險？【解析】risk ones life to do sth 某人舍命做某事 There is a risk of sth/ doing sth 有（做）某事的危險 take risks 冒險18.One of the main reasons

20、is because people want to challenge themselves in the face of difficulties. 最主要的原因之一是因為人們在面臨困難的時候想挑戰(zhàn)自我。【解析1】challenge v/n 挑戰(zhàn)face a challenge 面臨挑戰(zhàn)challenge sb. to sth向某人挑戰(zhàn) He challenged me to a race.他向我挑戰(zhàn)賽跑。challenge sb. to do sth 向某人挑戰(zhàn)【解析2】in the face of 面對（問題、困難等）They showed courage in the face of

21、danger. 面對危險他們表現出了勇氣。19.The spirit of these climbers shows us that we should never give up trying to achieve our dreams. 這些登山者的精神告訴我們， 我們應該從不放棄實現自己的夢想。 【解析】achieve v 獲得；達到； 實現 achievement n 完成； 成績achieve ones dream = ones dream comes true實現某人的夢想詞條是否接賓語用法achieve是主語一般為“人”come true否主語一般是“夢想；理想”20. It a

22、lso shows that humans can sometimes be stronger than the forces of nature.它還告訴我們， 人類有時候比自然的力量更強大?！窘馕?】human n 人；人類 No human could live like this .沒有人能這樣生活。【解析2】force n 力量； the forces of .的力量 The force of human is great. V. 迫使；強迫 force sb. to do sth 強迫某人做某事 Nobody can force me to do something.【解析3】na

23、ture 不可數名詞 “自然界；大自然” natural adj. 自然地 in nature 在自然界中Section B- Self Check1. The elephant weights many times more than this panda. 這頭大象的重量是這只熊貓的很多倍?！窘馕?】weigh v 稱的重量 weight n 重量【記】 She weighs herself every day and wants to lose weight.【解析2】time “是.的幾倍”主語 + 數詞 + times + as +形容詞+ as +被比較的內容Our new sch

24、ool is four times as big as the old one. “次數” 一次 once 兩次 twice 三次及三次以上 ： 基數詞 + times three times 三次 three or four times 三到四次【短語】many times 很多倍 last time (在)上次時 every time 每次/每回 each time 每當時 the first time 第一次時 next time (當)下次時 【句型 】  Its time for sth . 或 

25、;Its time ( for sb . ) to do sth . 意為：該是的時候了   Its time for dinner . 該是吃晚餐的時候了。   Its time for children to go to bed . 是小孩睡覺的時候了。2.At birth, a ba

26、by panda is about _ to _ kilos. 剛出生的小熊貓幼崽約_到 _公斤?！窘馕觥縜t birth 出生時 （用作時間狀語） give birth ( to sb/ sth) 生孩子；產仔3. A panda can live up to _ to _ years. 一只熊貓活_ 年到_ 年【解析】up to 高達 up to +數量詞 達到 （某數量、程度等）；至多 I can take up to four people in my car. 直到 （現在）Up to now , Tony has been very quiet. be up to sb. “由某人

27、決定” Shall we go out or stay in ? Its up to you.4. Lin Wei and the other panda keepers are preparing the milk for the baby pandas breakfast. 林微和其他熊貓飼養(yǎng)員們正在給熊貓幼崽準備牛奶作為早餐。【解析1】the other 其他的 （指兩個事物或兩個人中的“另一個”， 后接名詞時，表示“其他的人或物”；one. the other . （兩者中）一個.， 另一個.the others=the other +復數名詞the other的復數形式是the ot

28、hers “其他東西，其余的人”。特指某一范圍內的“其他的（人或物）”。Two boys will go to the zoo, and the others will stay at home. 兩個男孩將去動物園，其余的留在家里。 【解析2】preparefor 為準備1). prepare sth.表示"準備."，后接名詞或代詞作賓語。Our English teacher was preparing the lessons when I came into the office. 我進辦公室時，我們的英語老師在備課。2). prepare to do sth.表示&

29、quot;準備做."。They were preparing to cross the river when it began to rain. 他們正準備過河，突然下雨了。3). prepare for sth.表示"為.做準備"。The students are busy preparing for the final exam.學生們正在準備期末考試5. At 9:00 a.m, they find that most of the babies are already awake and hungry.上午9:00的時候，他們發(fā)現大部分熊貓幼崽已經醒來并且

30、餓了?！窘馕觥縜wake adj. 醒來 （反義詞）asleep 睡著的 She was awak all night.V. 喚醒；使醒來 = wake up The noise awak me. 6. When the babies see the keepers, they run over with excitement and some of them even walk into their friends and fall down! 當熊貓幼崽們看到飼養(yǎng)員時便激動地跑了過來，有些甚至撞倒它們的伙伴，絆倒在地！【解析1】run over 撞倒 run ran run running

31、     runner 賽跑的人【短語】run after 追逐,追求  run away from 從跑掉;逃避  run out (某物)被用完  run out of 用完(某物)  run into 無意間碰到,和相撞  【解析2】excitement 激動；興奮exciting 形容詞，表示"令人興奮的；使人激動的"，指人、事、物本身讓人

32、興奮、激動 He told us an exciting story yesterday.excited 形容詞，表示"興奮的"，指人、物對.感到興奮，是（主動地感到）興奮的excite v "(使)興奮" excitement n 激動；興奮 Are you excited about going to Beijing?  be excited about 對感到激動 to ones excitement

33、 使某人興奮的是【解析3】fall down 跌倒fall “落下，跌落，降落”，指在重力的作用下落下，或失去平衡而跌落The leaves fall in the autumn.fall down強調的是“滑倒、倒下”，后接賓語時應加上介詞fromThe book fell down from the table to the floor. 【短語】 fall down 倒下 fall over 落在.之上, 臉朝下跌倒 fall off 下降, 跌落 fall over“向前摔倒、跌倒”。7. The baby often die from illness and do not live

34、very long. 熊貓幼崽常死于疾病，并且活不久?！窘馕?】die v. （延續(xù)性動詞） be dead 死，死亡 death n. 死，死亡dead adj. 死的 【拓展】die from 死于die v“死”表示生命的結束 dead adj 死的death n 死亡 常用短語 die from + 外因 “死于”，主要指事故等方面的外部原因。die from a traffic accident 死于交通事故 The old man died from a car accident last year. 這個老人去年死于一場車禍2 die of + 內因 主要指疾病、衰老、情感等自身

35、原因die of hunger/an illness 餓/病死 His grandfather died of liver cancer in 1992. die out“（家族、物種等）滅絕；絕跡 Dinosaurs died out 65 million years ago. 恐龍在六千五百萬年前滅絕了【解析2】illness 疾??；病ill /sick 共同點："生病的；有病的" 不同點：ill adj."生病的；有病的"作表語，不能作定語 be ill in hospital sick 作表語/作定語，"病人"a sick m

36、an 或the sick,She is ill / sick in bed. 她臥病在床。She is looking after her sick father .她在照顧她生病的父親。【拓展】sick "惡心的；厭倦的" The smell makes me sick.這氣味使我感到惡心。8. Adult pandas spend more than 12 hours a day eating about 10 kilos of bamboo.成年熊貓每天花12個小時來吃掉大約10公斤的竹子。【解析】spend (in) doing 花時間做某事【】spend/pay/

37、cost/take 花費(1)spendspentspent v 花費,主語是人 sb.+ spend +時間/錢+on sth sb. +spend +時間/錢+（in） doing sthspend on= pay for 支付He spends too much time on the computer games. (2) pay paid paid v 支付，主語是人 sb.+ pay + 錢+for sth I pay 10 yuan for the book. (3) cost cost cost v 花費，主語是某物或某事 sth cost sb. +錢 某物花費某人多少錢 A

38、 new computer costs me a lot of money. (4)taketook taken v 花費It takes /took sb. some time to do sth. 做某事花費某人多長時間It takes him 3 hours to do his homework.9. But then humans started to cut down the forests, and there was less bamboo for the pandas. 但是后來人類開始砍伐森林，導致可供熊貓吃的竹子越來越少?！窘馕?】cut down 砍伐；砍倒cut dow

39、n 砍倒，減少，降低，縮短 The little boy cut down the young tree 【拓展】與cut有關的短語cut something from something 切下，割下cut something away 切除，剪去cut up 切碎 cut off切斷，停止【解析2】less 更少的less是little（小；少）的比較級： He spends less time (in) doing experiments. 他做實驗花時間較少?！發(fā)ess+形容詞或副詞”構成劣等比較，作“較不”，“更不”解。 It is less cold than it was yest

40、erday. 天氣不如昨天那樣冷?！就卣埂縩ot less than + 基數詞表示"不下于；至少；不止"no less than + 基數詞表示"達.之多（言其多）" There are not less than 40 students in this class. 這個班級至少有40個學生。 No less than 1,000 people were missing in the earthquake. 地震中失蹤人數多達一千人。 10. Scientists say there are now fewer than 2000 pandas li

41、ving in the remaining forests. 科學家們說現在只有不到2000只大熊貓生活在幸存的森林中了?！窘馕觥?There be + 名詞（短語） + ving. 某處有某人或某物在做某事There is a truck collecting rubbish outside.【解析】remind v保持，仍是（系動詞+adj. ）11. Another 200 or so live in zoos or research centers in China and other countries.另外的200 只左右生存在動物園或中國和其他國家的研究中心。【解析】anothe

42、r +數詞 另外的, 再another 同類事物（三個以上）的另一個， I don't like this one, please show me another. 我不喜歡這個,請給我另一個。 some. others一些，另一些Some boys are reading; others are listening to the radio. 有些孩子在閱讀,有些則在聽收音機。 one . the other 表示兩者里面的另一個！ I've bought two sweaters . One is for you and the other is for my brothe

43、r. other+復數名詞Where are the other students? 其他同學在哪里?12. We all hope that in the future there will be a lot more pandas than now.【解析】there be句型的將來時【2013銅仁】Theres going to _ an English evening tonight? Would you like to go with us? Id love to. A. have B. has C. is D. be13. Another reason for fewer and

44、fewer pandas is because people are cutting down forests so pandas have fewer places to live and less bamboo to eat.熊貓越來越少的另外一個原因是因為人們砍伐森林，所以可供熊貓居住的地方越來越小，可供其吃的竹子也越來越少?！窘馕觥勘容^級 +and +比較級 越來越【2013遼寧鞍山1】After rebuilding, our school is becoming _.A. more and more beautiful B. more beautiful and beautiful

45、C. beautiful and beautiful D. the more beautiful專心-專注-專業(yè)單元短語一、重點短語1. as big as 與一樣大2. one of the oldest countries 最古老的國家之一3. feel free to do sth. 隨意地做某事 feel free to ask sb. sth. on 就隨意問某人某事4. as far as I know 據我所知5. man-made objects 人造物體 6. part o f. . 的組成部分7. the highest mountain 最高的山脈 8. in the w

46、orld 在世界上9. any other+名詞單數 其他任何一個.any other mountain 其他任何一座山10. of all the salt lakes 在所有的咸水湖中11. run along 跨越 12. freezing weather 冰凍的天氣13. take in air 呼吸空氣14. the first people to do sth. 第一個做某事的人15. in the face of difficulties 面臨危險16. give up doing sth. 放棄做某事 17. achieve ones dream 實現某人的夢想18. the

47、forces of nature 自然界的力量19. reach the top 到達頂峰 20. even though 雖然;盡管21. at birth 在出生的時候 22. be awake 醒著23. run over with excitement 興奮地跑過去24. walk into sb. 撞到某人 25. fall over 摔倒26. take care of 照顧;照料 27. every two years每兩年28. cut down the forests 砍伐林木 29. endangered animals 瀕危動物30. fewer and fewer pa

48、ndas 大熊貓越來越少31. be in danger 處于危險之中32. the importance of saving these animals拯救這些動物的重要性33.as you can see 正如你看到的 34.up to 直到35.prepare for為準備 36.die from 死于 37. or so 大約，左右 38.in the future 將來 39.protect from/against保護使不受，防御40.succeed in doing sth. 成功做某事41.there be sb./sth. doing有某人/某物正在做某事42.teach s

49、b. about sth. 教某人有關內容43.send sb.to do sth. 派某人去做某事二、重點句型1. It is -adj. + (for sb. ) to do sth.It is also very hard to take in air as you get near the top.當你接近山頂時，連呼吸都會困難。2. . . . is because.One of the main reasons is because people want to challenge themselves in the face of difficulties.其中的一個主要的原因是人們想要在面臨困難時挑戰(zhàn)自己。3. . . . show(s) that.The spirit of these climbers shows us that we should never give up trying to achieve our dreams.這些登山者的精神向我們證明：我們永遠都不應該放棄實現自己的夢想。4. How high/ deep/. . . is . ?How high is Qomolangma?珠穆朗瑪峰有多高？5. Although. “ ，Although Japan is older than Canada，it is much smal